Currently, the endgame boost combinations is obsolete. I've mostly stopped playing trove and I need to replace the GPU on my main computer, which has my spreadsheet for gem calculations. I use a different formula to calculate dps for NN as explained in the guide, but I don't know if you use the same formula. I might come back to trove in 1 or 2 months after fixing my computer, and I might make a user friendly version of my spreadsheet to share as well as update this guide.